Superconductivity in ternary iron silicide YFe2-δSi2 single crystal

被引：3
|
作者：
Goto, Ryosuke [1 ]
Noguchi, Satoru [1 ,2 ]
Ishida, Takekazu [1 ,2 ]
机构：
[1] Osaka Prefecture Univ, Dept Phys & Elect, Osaka 5998531, Japan
[2] Osaka Prefecture Univ, Inst Nanofabricat Res, Osaka 5998531, Japan
来源：
PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS | 2010年 / 470卷
关键词：
YFe2-delta Si2; Single crystal; Superconductivity; X-ray analysis; Susceptibility; HEAT;
D O I：
10.1016/j.physc.2010.01.025
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
We report a discovery of superconductivity in ternary iron silicide YFe2-delta Si2 single crystal prepared by the Czochralski pulling method. The YFe2-delta Si2 has the ThCr2Si2-type structure with the lattice parameters (a = 0.3915 nm and c = 0.9936 nm) and the stoichiometry of Y:Fe:Si = 1:1.8:2. The in-field susceptibility showed a clear decrease at temperatures below 3 K. The zero resistivity of YFe2-delta Si2 was also confirmed at temperatures below 3 K. No remarkable anomaly in the specific heat was observed at 3 K, suggesting the non-bulk superconductor. (C) 2010 Elsevier B.V. All rights reserved.
引用
收藏
页码：S404 / S405
页数：2
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